Troubleshooting
Reko's Pincushion problems — and how to fix them
Reko's Pincushion (Mammillaria rekoi) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root rot
Overwatering or winter moisture is fatal. Water only in the growing season and keep bone dry in winter.
Mealybugs
Check in the axils between tubercles. Treat with isopropyl alcohol applied via a cotton swab, or a systemic insecticide for severe infestations.
Sunscald
Gradual acclimatisation is needed when moving from indoors to outdoor sun in summer. Sudden full exposure causes bleaching and scarring.
Failure to flower
A strict cool, dry winter rest at 10-12°C for at least 10 weeks is required to initiate flowering. Ensure adequate direct sun through the growing season too.
Spider mites
In hot, dry indoor conditions, fine webbing around the spines can indicate spider mites. Improve ventilation and treat with an appropriate acaricide.
Prevent reko's pincushion problems before they start
Most reko's pincushion issues are care-mismatch, not bad luck. Dial in the basics:
Reko's Pincushion problems — FAQ
Why is my reko's pincushion root rot?
Overwatering or winter moisture is fatal. Water only in the growing season and keep bone dry in winter.
Why is my reko's pincushion mealybugs?
Check in the axils between tubercles. Treat with isopropyl alcohol applied via a cotton swab, or a systemic insecticide for severe infestations.
Why is my reko's pincushion sunscald?
Gradual acclimatisation is needed when moving from indoors to outdoor sun in summer. Sudden full exposure causes bleaching and scarring.
Why is my reko's pincushion failure to flower?
A strict cool, dry winter rest at 10-12°C for at least 10 weeks is required to initiate flowering. Ensure adequate direct sun through the growing season too.
Why is my reko's pincushion spider mites?
In hot, dry indoor conditions, fine webbing around the spines can indicate spider mites. Improve ventilation and treat with an appropriate acaricide.